Pocketbook of Useful Formulæ and Memoranda
for Civil and Mechanical Engineers

727 INDEX. PAGE Ice .....................361 Impact ..................385 Impregnation of Timber 104 I Impulse .................3»3 Inaccessible Points .. .. 1 ] Inches and Millimetres .. 606 —----Decimal Equivalents of.......................590 Inclines, Rope • • . • • • • 225 Incrustation of Boilers .. 432 India, Dimensions of Hoads in........................241 ! -----Irrigation In .. .. 291 -----------—.— Sluices in 294 -----Wear of Roads in 242 Indian Money.............59» -----Rivera, Weirs in 289 -----Weights .. .. 693 Inertia, Example of .. 127 —--------Moment of.. .. 126 ______________In Beams 128 by Gra- in. . 128, different Injection Water .. .. 492 Injector, Giffard’s .. ..473 Inspection of Boilers, Board of Trade Rules .. .. 474 -------------------Lloyd’s Rules ....................474 Integral Calculus .. .. 625 Interest, Compound and Simple...................611 Interpolation .. .. ,, 612 Iron, Angl«1, Weight of .. 40 ------------Arches ......182 ---------------------------. Expansion of 182 ---------------------------- Liue of Equi- librium of ...............180 -----Balls, Weight of .. 51 ----Bar, Round .. .. 38 -----Beams, Rolled .. .. 138 —— Blast Furnaces for .. 442 TAGE Iron, Carbon in............34 ----Cast, .Strength of .. 27 --Tests of .. .. 31 ----Classification of Pig 34 ----Columns...............115 ----Corrugated, Roofing 142 --------------Strength of 143 ----Flat Bar, Weight of 37 ----Fbreign Substances in 35 ----Galvanizing .. .. 427 ----Girders, Cast ,, ,.169 --------------Plate .. ,,170 ----Hoop...................38 ----Lacquer .. .. ,, 428 ----Malleable Castings ., 35 ■---Notes on...............34 ■---Percentage of Carbon in .. ...................34 ----for Retaining Walls .................296 ----Pipes, Pressure in .. 284 ----------Rules fur Weight of .. <. .. 2S4 ----------Weight of Wrought .................50 ----Plates, Weight of .. 39 ■---Power required In Manufacture of .. .. 441 ----Rolled, Beams .. .. 138 ----Roofs, Diagrams of 148, 150 ----------Examples of 147 ------------- Strains on .. 146 ----Roof Trusses .. .. 152 ■--Round and Square, Weight of ................38 ----Sheet, Weight of .. 39 ----Sizes of >« .. 158 ----Sluices .. ., .. 294 ----Strength of ,. .. 27 ----Stress in.............156 -----Struts .. .. .. 114 ____r .....................no ----Tenacity of .. .. 24